4223623730 has 16 divisors (see below), whose sum is σ = 7646471064. Its totient is φ = 1679683200.

The previous prime is 4223623727. The next prime is 4223623751. The reversal of 4223623730 is 373263224.

It can be written as a sum of positive squares in 4 ways, for example, as 4119970969 + 103652761 = 64187^2 + 10181^2 .

It is a super-2 number, since 2×4223623730² = 35677994825238225800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1218971 + ... + 1222430.

Almost surely, 2^4223623730 is an apocalyptic number.

4223623730 is a deficient number, since it is larger than the sum of its proper divisors (3422847334).

4223623730 is a wasteful number, since it uses less digits than its factorization.

4223623730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441581.

The product of its (nonzero) digits is 36288, while the sum is 32.

The square root of 4223623730 is about 64989.4124454130. The cubic root of 4223623730 is about 1616.4480081688.

Adding to 4223623730 its reverse (373263224), we get a palindrome (4596886954).

The spelling of 4223623730 in words is "four billion, two hundred twenty-three million, six hundred twenty-three thousand, seven hundred thirty".